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209 Commits

Author SHA1 Message Date
yamt
ac65f2420a nfs_readdirplusrpc: fix spurious EBUSYs. 2004-09-23 10:46:44 +00:00
yamt
7653f67dd6 nfs_readdirplusrpc: fix a very long-standing cache corruption bug. 
in the case of !bigenough, don't fill d_type or dnlc with bogus data.
 2004-07-20 22:02:21 +00:00
yamt
62190652f1 revert nfs_vnops.c rev.1.189. 
it's no longer needed because cache_enter() has been changed to handle
duplicated entries by itsself.
 2004-07-20 22:00:29 +00:00
yamt
1c77f27a7a nfs_commit: use NAC_NOTRUNC when loading an attribute 
as we're called holding pages locked.
 2004-07-18 07:41:42 +00:00
yamt
0f5d997ee9 - include opt_inet.h for INET. 
- catchup to in_ifaddr -> in_ifaddrhead rename.

XXX the address on the top of in_ifaddrhead is likely 127.0.0.1.
using it to construct the verifier doesn't make much sense.
maybe it's better to use some uuid or ip_randomid-like method.
 2004-07-08 11:21:35 +00:00
yamt
fad58613ba nfs_create: after an exclusive create rpc, make sure to update 
timestamps, which were likely used to store the verifier.
reported by Mark Davies.  PR/26200
 2004-07-08 11:12:14 +00:00
yamt
21ae434eb2 nfs_lookup: use cache_lookup_raw() so that: 
- "intrusive" dirops now have more chances to get benefits from dnlc.
- fixes a deadlock due to vnode locking order inversion.

nfs_create and others: purge stale dnlc entries
as nfs_lookup() no longer does it automatically.
 2004-06-27 08:53:03 +00:00
yamt
3e209dd94a nfs_lookup: maintain PDIRUNLOCK even in the case of success to make 
layered filesystems happy.
 2004-06-16 23:55:30 +00:00
yamt
ee306471a7 remove an unused instance of VOP_UPDATE. 2004-05-27 12:55:07 +00:00
christos
45fb41a2bd cut down another 7K by more NFS_V2_ONLY ifdefs. 2004-05-23 05:53:01 +00:00
yamt
92e4dbdd94 #if 0 out CREATE optimization for now because it has a problem in the case 
of O_CREAT|O_TRUNC, which is hard to be fixed without changing upper layer.
 2004-05-17 12:17:18 +00:00
yamt
75f99c3465 nfs_lookup: handle "." by ourselves as RFC1813 3.2 says. 2004-05-10 12:43:51 +00:00
yamt
2dd754b680 don't do kludge for a reply to a retransmitted request 
unless we actually retransmitted the request.
 2004-05-10 10:40:42 +00:00
yamt
1c1b12397d nfs_lookup: avoid CREATE optimization for DOTDOT. 
creating a DOTDOT entry has no sense and will fail anyway.
 2004-05-08 21:35:13 +00:00
yamt
48e8239c5a nfs_mkdir: handle the "." case. 2004-05-08 21:33:41 +00:00
yamt
2890b70316 nfs_lookitup: handle "." correctly rather than returning garbage on the stack. 2004-05-08 21:32:34 +00:00
yamt
52fedf49f0 check read only mount appropriately. 
(fix a bug of nfs_vnops.c rev.1.192.)
pointed by Rob Quinn on current-users@.
 2004-05-07 16:09:46 +00:00
yamt
2a85a8c4fd because nfsv3 has the same CREATE semantics as ours, 
we don't have to issue LOOKUP RPCs beforehand.
 2004-05-06 21:58:17 +00:00
yamt
d1a0f61a77 nfs_readdirplusrpc: fix a deadlock problem. 
don't wait for vnode lock to load attributes.
otherwise, because READDIRPLUS returns DOTDOT entry as well,
we violate locking order.
 2004-04-05 10:44:09 +00:00
yamt
9ec3dce770 don't issue VOP_GETATTR blindly in nfs_nget(). 
in many cases, GETATTR RPCs here is redundant because the caller has
postop_attr.  instead, make sure the resulted vnode have a valid
attribute in nfs_lookup().
 2004-04-05 10:40:56 +00:00
yamt
04e9fcc377 nfs_readdirplusrpc: purge existing namecache entry before entering a new one. 
otherwise we'll get duplicated entries.
 2004-04-05 10:36:32 +00:00
yamt
757220a432 when entering a namecache entry for nfs, ensure to update the appropriate 
timestamp in the nfsnode so that we don't get namecache-miss when
looking up the node we just created.
 2004-04-05 10:35:12 +00:00
yamt
f2fb72c33f avoid unnecessary namecache purges in some places. 2004-04-05 10:27:11 +00:00
yamt
c819fadc97 shrink sizeof struct nfsnode by putting exclusive members into union. 2004-03-12 16:52:37 +00:00
yamt
a4cbf5b042 introduce a macro NFS_INVALIDATE_ATTRCACHE and use it 
instead of "n_attrstamp = 0".
 2004-03-12 16:52:14 +00:00
fvdl
b916f59963 Unix semantics dictate that access checks for files are done when it 
is opened. An open file can always be read from and/or written to,
depending on how it was opened.

Therefore, the read/write/commit RPCs should never return EACCESS,
as they are only performed on files that have been successfully opened
already.

This change improves the current situation and works in most cases.
It simply always uses the most recently known owner/group of the file,
iff the authentication mechanism is AUTH_UNIX (in other cases, the
creds for a succesful open are used, but note that no other cases
are currently implemented).

A retry mechanism can be used to catch a few more cases, but this is
a good improvement for now.
 2003-12-07 21:15:46 +00:00
yamt
4e8d9fe867 pad requests correctly in the zerocopy case of write rpc. 2003-11-29 19:27:57 +00:00
christos
fe659fa011 fix uninitialized variable 2003-10-25 08:48:11 +00:00
yamt
ef98d23ce3 do delayed truncation in nfs_getattr. 2003-09-26 14:08:45 +00:00
yamt
c2025ab0ea change n_mtime from time_t to timespec in order to improve 
cache consistency.
(1 second granularity is too loose these days.)
 2003-09-26 11:51:53 +00:00
enami
e027b9d372 Make negative name cache works again. 2003-09-25 23:10:58 +00:00
yamt
1e8ae1ddf3 change nctime to timespec from time_t. 
there can be too many activities in a second.
 2003-09-17 09:10:00 +00:00
agc
aad01611e7 Move UCB-licensed code from 4-clause to 3-clause licence. 
Patches provided by Joel Baker in PR 22364, verified by myself.
 2003-08-07 16:26:28 +00:00
yamt
33164bffc6 vrecycle removed nfs vnodes. 
not perfect, but enough for most cases.
 2003-07-30 12:25:39 +00:00
fvdl
d5aece61d6 Back out the lwp/ktrace changes. They contained a lot of colateral damage, 
and need to be examined and discussed more.
 2003-06-29 22:28:00 +00:00
darrenr
960df3c8d1 Pass lwp pointers throughtout the kernel, as required, so that the lwpid can 
be inserted into ktrace records.  The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V
 2003-06-28 14:20:43 +00:00
yamt
ff974db6fd if nfs_writerpc() splitted an unstable write into some rpcs and 
write verifier was changed, we should restart from the first.
 2003-06-27 14:00:55 +00:00
yamt
42be09ca92 indent. 2003-06-27 13:58:36 +00:00
yamt
bcf2e4f22f fix a problem in 'protected' case of writerpc. 
retransmitted mbufs can survive even after requests themselves
finished.  so, before unbusy pages, make sure that mbufs referring them
go away.

pointed by enami tsugutomo on port-mips.
 2003-06-03 14:27:48 +00:00
yamt
d36494e29b fix a memory leak bug that i introduced in rev.1.167. 
patch provided by enami tsugutomo on current-users.
 2003-05-27 14:41:06 +00:00
yamt
a340c1b544 when a result of NFSv3 READLINK is too long for us, 
return ENAMETOOLONG rather than EBADRPC.
(it's our implementation limit, not protocol limit.)
 2003-05-26 13:34:38 +00:00
yamt
08bf5aae7b remove local definitions of TRUE and FALSE. 2003-05-21 13:50:54 +00:00
yamt
ddd5ced644 eliminate memcpy in the common and easy case of write. 2003-05-21 13:27:19 +00:00
yamt
8c5ba805e5 better handling of write verifier change. 2003-05-03 16:28:57 +00:00
drochner
9e95dcb696 Change some subordinate functions to take a "struct nfsnode" argument 
instead of "struct vnode". This saves a number of pointer dereferences;
it sums up to about half a kB for me. And it paves the way for future
fixes.
While cleaning up, eliminate a write-only member of "struct nfsreq"
and a pointless assignment in the NFS_V2_ONLY case.
 2003-04-24 21:21:04 +00:00
yamt
65e3d14a8a rename a very confusing variable name. 
(must_commit -> stalewriteverf)
 2003-04-09 14:30:30 +00:00
yamt
9b96b4ab78 make per-iod datas together. 2003-04-09 14:22:33 +00:00
yamt
0dff798bde rename nm_verf to nm_writeverf because it's confusing with nm_verf{str,len}. 2003-04-09 14:21:24 +00:00
yamt
a14f444335 use queue manipulation macros. 2003-04-02 15:14:19 +00:00
yamt
1f94d18621 rename fvdl_debug to NFS_DEBUG_COMMIT. 
ok'ed by fvdl.
 2003-03-31 14:47:03 +00:00